add

 angular.module('myApp.services')
-.service('wechatPayment',['$http', '$q', '$rootScope',function($http, $q, $rootScope) {
+.service('wechatPayment',['$http', '$q', '$rootScope','$location',function($http, $q, $rootScope,$location) {
 
     //var host = 'http://finance.api.dingdachuxing.com/service';
     var host = 'http://finance.dy.dingdatech.com/service';
@@ -8,7 +8,7 @@ angular.module('myApp.services')
 
     var h5alipayhost = 'http://lsz1.28ms.com/service/balance/';
 
-
+    console.log('search:',$location.search());
 
     //调用微信JS api 支付
     var jsApiCall = function (sign, q) {
@@ -83,22 +83,24 @@ angular.module('myApp.services')
          * 租车付款
          */
         callRentPay: function (orderId, amount) {
-            return callUnifiedOrderApi(host + '/bill/wx/' + orderId, {
+            var param = Object.assign($location.search(),{
                 amount : amount,
                 body : "租车租金",
                 type : 101
             });
+            return callUnifiedOrderApi(host + '/bill/wx/' + orderId, param);
         },
         /**
          * 保证金充值
          * @param amount
          */
         callDepositPay : function(amount){
-            return callUnifiedOrderApi(host + "/bail/wx", {
+            var param = Object.assign($location.search(),{
                 amount : amount,
                 body : "保证金充值",
                 type : 101
             });
+            return callUnifiedOrderApi(host + "/bail/wx", param);
         },
         /**
          * 钱包充值
@@ -106,11 +108,12 @@ angular.module('myApp.services')
          */
         callBalanceRecharge : function(amount,way){
             var host = (way == 100 ? h5alipayhost+ "alipay/h5" : h5wxhost+ "wx/h5");
-            return callUnifiedOrderApi(host, {
+            var param = Object.assign($location.search(),{
                 amount : amount,
                 body : "钱包充值",
                 type : parseInt(way)
             });
+            return callUnifiedOrderApi(host, param);
         }
     }
 }]);